Bug 992946 - [VDR] Update threads image previews style to match the refresh.
Bug 963991 - [Rocketbar] Implement SearchWindow r=alive
Merge pull request #18155 from azasypkin/bug-992946-image-previews

Bug 992946 - [VDR] Update threads image previews style to match the refresh. r=julien
Merge pull request #17990 from KevinGrandon/bug_963991_search_app_window_2

Bug 963991 - [Rocketbar] Implement SearchWindow r=alive